نتایج جستجو برای: t but ammonium iodide

تعداد نتایج: 2640063  

2012
Augusto Rivera Héctor Jairo Osorio John Sadat-Bernal Václav Eigner Michal Dušek

The title chiral quaternary ammonium salt, C(13)H(25)N(4) (+)·I(-), was synthesized through the Menschutkin reaction between the cage aminal (2S,7S)-1,8,10,12-tetra-aza-tetra-cyclo-[8.3.1.1(8,12).0(2,7)]penta-decane and ethyl iodide. The quaternization occurred regioselectively on the nitrogen with major sp3 character. The crystal structure consists of anions and cations separated by normal dis...

Journal: :The Journal of clinical investigation 1973
J B Field P R Larsen K Yamashita K Mashiter A Dekker

Benign and malignant nodules in human thyroid glands, which did not concentrate iodide in vivo, were also unable to accumulate iodide in vitro. The mean thyroid-to-medium ratio (T/M) in seven benign nodules was 0.8+/-0.2 compared with 7+/-2 in adjacent normal thyroid tissue. In four malignant thyroid nodules, the mean T/M was 0.5+/-0.1 compared with 11+/-4 in adjacent normal thyroid. Despite th...

Journal: :The Journal of biological chemistry 1948
M C BARRY

For the purpose of biochemical studies utilizing radioiodine 1131 as a tracer material, it is desirable to have a simple, sensitive, and thoroughly validated method for the measurement of the radioactivity of the biological samples. The present investigation was undertaken to provide such a method, with part,icular reference to the thyroid of the rat, but is adaptable with appropriate modificat...

2002

Cat # Product Name Unit Size S-7563 SYBR Green I nucleic acid gel stain *10,000X concentrate in DMSO* ............................................................................................................... 500 μL S-7567 SYBR Green I nucleic acid gel stain *10,000X concentrate in DMSO* ..........................................................................................................

Journal: :Organic & biomolecular chemistry 2015
Yogesh Siddaraju Kandikere Ramaiah Prabhu

Tetrabutyl ammonium iodide (TBAI) catalyzed α-aminoxylation of ketones using aq. TBHP as an oxidant has been accomplished. We have shown that the CDC (cross dehydrogenative coupling) reactions of ketones with N-hydroxyimidates such as N-hydroxysuccinimide (NHSI), N-hydroxyphthalimide (NHPI), N-hydroxybenzotriazole (HOBt) and 1-hydroxy-7-azabenzotriazole (HOAt) lead to the corresponding oxygenat...

2009
Toyoshi Endo Tetsuro Kobayashi

We immunized AKR/N mice with bovine thyroglobulin (Tg) once every 2 weeks and monitored their time-dependent changes in (125)I uptake activity in the thyroid glands. After 3 months, anti-Tg antibody was positive in all sera from the immunized mice. Serum free tri-iodothyronine (T(3)) and free thyroxine (T(4)) levels in the immunized mice (n=6) were significantly higher than those in the saline ...

Journal: :Journal of immunology 2014
Panayota Kolypetri Karen Carayanniotis Shofiur Rahman Paris E Georghiou Vassiliki Magafa Paul Cordopatis George Carayanniotis

Enhanced iodide ingestion is known to accelerate the incidence and severity of spontaneous autoimmune thyroiditis [iodide-accelerated spontaneous autoimmune thyroiditis (ISAT)] in NOD.H2(h4) mice. CD4+ cells are required for the development and maintenance of ISAT, but their target epitopes remain unknown. In this study, we show that the previously identified thyroglobulin (Tg) T cell epitope p...

Journal: :The Journal of clinical investigation 1974
J Abuid P R Larsen

In 66 untreated patients with hyperthyroidism, serum triiodothyronine (T(3)) and thyroxine (T(4)) concentrations were measured by immunoassay. The mean T(3) level was 478+/-28 ng/100 ml (all values mean+/-SEM) and the T(4) was 20.6+/-0.6 mug/100 ml. The serum T(4)/T(3) ratio by weight was 48+/-2 as opposed to a value of 71+/-3 in euthyroid adults. There was a significant inverse correlation of ...

Journal: :Endocrinologia japonica 1989
H Yoshimura O Ozaki K Ito T Hosoya

Peroxidase activities of autonomously functioning thyroid tumors (T) and surrounding non-tumorous tissue (N) in 5 patients were determined by employing guaiacol or iodide as the second substrates. The mean values for specific activities of T were 30 times (in iodide oxidation assay) or 4 times (in guaiacol oxidation assay) as high as those in N, being significantly higher than those of non-func...

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